f(x): f(x). Actress: f(x): Electric Shock. F(x) was a four-member (originally five-member) South Korean girl group formed by SM Entertainment and active from 2009 to 2016. The name is a play on the mathematical notation for function, with "f" signifying "flower" and "x" representing the female's double X chromosome. The group made their debut on September 1, 2009, with the release of a digital single "LA Ch Ta". The quartet consists...
Known For: f(x): Electric Shock (Actress(as Fx)), f(x): LA chA TA (F(x)(as Fx)), f(x): 4 Walls (Actress(as Fx)), f(x): NU ABO (F(x))